Water cooler



FIG. 1 is a front, top, side perspective view of my water cooler;

FIG. 2 is a front perspective view of the water cooler shown if FIG. 1;

FIG. 3 is a rear view of the water cooler;

FIG. 4 is a left side elevational view thereof, the right side being amirror image of the left side as shown; and,

FIG. 5 is a top plan view of the water cooler.

The ornamental design for a water cooler, as shown and described.